Antifriction-bearing



L. LANGHAAR.

ANTIFRICTION BEARING.

APPLICATION FILED MAY8 191 Patented- J uly 22,1919.

INVEN TOR.

'WFFAQESS:

TTORNEY.

canines LOUIS LANGHAAR, OF CINCINNATI, OHIO.

' eNTmmoTroN-iaEAnme.

' To all wl gm concern:

citizen of the United States, residing Be known that I, Louis LANonAAR, a

.zCineinnati, .in the county of Hamilton and State of Ohimhaveinvented a newandIm proved Antifrietion-Bearing, of which the following is specification.

My'mvention relates to the class of devices above-named, andan object of my in- .vention, amongpthers, is to provide a beara in of this type that shall have particularly a .e cient means for retainingthe' balls on predetermined Qpathsof travel. f

I ,a One form o f beari'ng embodying'my infl' vent on and in-the construction "and use of 'which the objects herein set out, as well as others, may be'attained, is illustrated'in the accompanying drawings, in which- Figure 1. is a view in central section through my improved anti-friction bearing on plane passing lengthwisethrough the 3x18. i 1 .Fig. 2 is a viewin cross section through said bearing. a fsprings. V p

; Fig.4 is a fragmental view in central sec- Fig.'3,is a detail a e view'of one of the I tion through the rcstrainingmember of my 1 n Y In certain types of anti-frictlon bearings V the'ballcase are flared in one direction lat- Yer-ally: to. the circular line of travel of the ;of movement by restraining members. Such improved bearing showing-a slightly difi'erent structure from that of Figs. 1 and 2. i

the ballraces contained ini-the' members of balls,the lattenbeing held upon their paths a,dcvi ce is shown in my Patent No. 1199577, ,dated September 26th, 1916, and the devlce" formingthe subject matter of the present case isvan improvement upon the device of said patent; and has to do withthe means forretaining theballsupo'n thepaths of I travel which it is designed they shall occupy.

purpos'e.

member and of the outer member or ball In the accompanying drawings the numeral 5 denotes the nner or cone member of a bearing that is provided with the usnal opening 6 and that has a rib 7, formingaf double cone. The outer member or case is preferably composed of two parts 8'9 that talpered pins 10 being shown herein for this are locked together in any desiredmanner,

The construction of the inner case, however,.isnot. material to my invention, nor are the means 't 'pr introducing the Specification of Letters iPatent: Patented J 2'23, ll ll i Application liled m a, 1917. Serial No. 167,335. i i

halls, and -my invention is, therefore, not limited to a bearing of any special construe tion norto one having any special means for accomplishing this purpose.

In the device herein shown a double bali race is provided, that is, a race for twosets of balls, the members 8-9 being provided with shallow grooves 11 12 located oppo site depressions13-14 on opposite sides of the rib 7', \vhich'grooves and depressions together form the raceways for balls 15. The

grooves and depressions just mentioned are of such formthat they increase in width from the lines on which it is designed that the balls shall travel toward each otheiythat is, they flare in this direction, so that the ball of each set, if unrestrained, would be free to move toward the other set of balls.

It is essential, however, that the balls shall Such a device is shown in, the accompany- 1I lg drawings, thls device consisting of two rings 16, duphcatesof each other. These rings comprise a restraining member to posimen the ballsupoh their paths of travel in the raceways and said. rings are set a stiflicient distance apart tQhtlVB a slight yielding movement toward and j from each other. They are retained in contact ,with the ball sets as by means of a spring or sprin located betweenthe rings and norma y pressing them apart, these springs beiiig so arranged that they are compressed in order to create the force that, they enertuponthe' rings. I v y In the structureshown in Figs. 1, Qand 3, each section 16 of the restraining member has a groove formed by flanges 17, within which groove a number of springs l8 are contained. In this construction of the do! vlce these springs are preferably of diamond shape, as shown in F g. 2 ofthe klrawings, or other suitable form that will accomplish the purpose, and when unrestrainedthey assume a bowed form as shown 'in Fig. 3.

When the two sectionslti of the restrainin member containing the springs are -placed between the rows of balls the springs will be compressed to a certain extent and their tendency to assume their full original bowed form will force-the sections of the retainer into contact with theballs and hold them in this position.

In the form of structure shown in Fig. ,4 the sections 19 ott-the rings have each an outer flange 20, the inner flange shown in the structure of Fig. 1 being omitted. In this structure of Fig. a a single spring 21 is provided, this spring being undulated in form and comprising a number of curves 22. This spring is preferably of annular shape, but it will be understood that my invention is not restricted to any-especial form of the sectional members of the rest 'ainer nor to any special form of the springs, so long as the latter exert their force by a tendency to return to their normal shape from a compressed condition, and so long as the sections of the restraining member are properly formed to hold the springs in place.

The flanges 17 and 20 serve 'as stops to prevent the sections of the restraining member. from approachin so closely together as to injure the springs, but I contemplate other means for accomplishing this. purpose as within the spirit and intent of the invention, and the latter is, therefore, not limited 'to the means specifically herein shown and described. 1

It is, of course, impossible froma theoretical standpoint, to build a perfect mechani-' cal structure, and especially a ball hearing, and it-is the purpose of my presentinvention to construct a bearing that shall approach perfection to a maximum degree and that shall have means for counteracting the imperfections in structure. These structures are subject to changes by reason of variations in temperature that cause change ;of dimensions, and these variations in temperature are readily affected by conditions in use. The first movement of a bearing starts wear, wbich is cumulative and progressive in an increasing ratio. These various errors, arising from unavoidable imperfections in structure and from conditions of use, although originally so small as to appear negligible are nevertheless insidious and fatal unless constantly and perfectly corrected as theyoccur, and my improved bearing seeks to overcome these defects by providing a flexible and properly proportioned adjusting means to exert a constant influence toward correcting any errors promptly upon their occurrence.

In accordance with the provisions of the patent statutes, I have described the prinei-- ples of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but

I desire to have it understood that the device shown is only illustrative, and that the invention can be carried out by other means.

I claim 1. An anti-friction bearing comprising innerand outer bearing members having a double ball race between them with two rows of balls in said races, and a restraining member placed between said rows'of balls and having 10 'ation therebetween in a circular direction free and independent of all other parts of the structure, said restraining member comprising two sections forming an annular recess between them, and means inclos'ed within said recess for forcing the sections into contact with the rows of balls.

2. An anti-friction bearing comprising inner and outer bearing members having a double ball race. between them with two rows of balls in said races, and a restraining member placed between said rows of balls and comprising two sections, and a spring compressed between said sections and acting to forcethe sections into contact with the ball rows. i

3. An anti-friction bearing comprising inner and outer bearing members having a double ball' race between them with two rows of balls in said races, and a restraining member placed between said rows of balls and having location therebetween in a circular direction free amlindependent of all other parts of the structure, said restraining member comprising two sections, and a spring compressed between said sections and acting to force them into contact with the rows of balls.

4. An anti-friction bearing comprising inner and outer bearing members haying a double ball race between them with two rows of balls in said races, and a restraining -member placed between said rows of balls and having location therebetween in a circular diecction free and independent of all other parts of the structure, and a spring placed between said sections and exertlng its force in lines substantially parallel with the axis of the bearing to force said sections into contact. with the rows of balls.

An anti-friction bearing comprising inner and outer bearing members having a double ball race between them with two rows of balls in said races, and a restraining membcr placed between said rows'of balls and having location therebetween in a circular direction tree. and independent of all other parts of the structure, said restraining member comprising two sections, a spring compressed by and between the sections to force them apart and into contact with the rows of balls, and means for limiting the movement of said sections toward each other.

(i. .\n anti fi'ictio-n bearing comprising inner and outer bearing members having a double ball race between them with two rows of balls in said races, and a restraining member placed between said rows. oi balls and. having location. therebetween in a circular direction free and independent of all other parts of the structure, said restraining member comprising two sections, and a series of springs of bowed form compressed between said sections and acting to force them apart. 1

7. An anti-friction bearing comprising inner and outer bearing members having a double ball race between them with two rows of balls in said races, and a restraining member piacecl between said rows of balls, said restraining member comprising two sections with an annular flange integral with one of said sections to limit movement of the sections toward each other, and a spring located between the sections to force them into con tact with the rows of balls.

with the axis of the bearing to force sairl sections into contact with the rows of balls.

9. An anti-friction bearing: comprising inner and outer bearing members having a double ball race between them with two rows of balls in said. races, and a restraining member placed between said rows of balls and comprising two sections, and a series oi springs of bowed form compressed between said sections and acting to force them apart.

10. Ananti-friction bearing comprising inner and outer bearing members having a double ball race between them with two rows of balls in said races, and a restrainmember placed between said rows of in bc ils and comprising two sections each hav- A ing a groove facing the other section, and aspring located in said grooves to force the sections into contact with the rows of balls.

'11. Ananti-friction bearing; comprising inner and outer bearing members having a double ball race between themfwith two rows of balis in said races, and. a device having free circular location in reference to the ball rows and comprising a resilient portion compressed by the pressure of the ball rows u and reacting to keep the balls in contact with the races. I v

LOUIS LANGHAAR. 

